EN IEC 61496-2:2020
(Main)Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs)
Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs)
IEC 61496-2:2020 specifies requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety-related system, employing active opto-electronic protective devices (AOPDs) for the sensing function. Special attention is directed to features which ensure that an appropriate safety-related performance is achieved. An ESPE can include optional safety-related functions, the requirements for which are given in Annex A of IEC 61496-1:2020 and of this document. This document does not specify the dimensions or configurations of the detection zone and its disposition in relation to hazardous parts for any particular application, nor what constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine. Excluded from this document are AOPDs employing radiation at wavelengths outside the range 400 nm to 1 500 nm. This document can be relevant to applications other than those for the protection of persons, for example, the protection of machinery or products from mechanical damage. In those applications, additional requirements can be necessary, for example, when the materials that are to be recognized by the sensing function have different properties from those of persons. This document does not deal with electromagnetic compatibility (EMC) emission requirements. IEC 61496-2:2020 cancels and replaces the third edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Requirements and test procedures in Part 2 that were found to be common to all ESPEs have been moved to Part 1. Test procedures that are dependent on the sensing technology remain in Part 2.
Sicherheit von Maschinen - Berührungslos wirkende Schutzeinrichtungen - Teil 2: Besondere Anforderungen an Einrichtungen, die aktive optoelektronische Schutzeinrichtungen (AOPD) verwenden
Securité des machines - Equipements de protection électro-sensibles - Partie 2: Exigences particulières à un équipement utilisant des dispositif protecteurs optoélectroniques actifs (AOPD)
L'IEC 61496-2:2020 définit les exigences de conception, de construction et d'essai d'équipements de protection électrosensibles (ESPE) conçus spécialement pour détecter des personnes, comme partie d'un système relatif à la sécurité, utilisant des dispositifs protecteurs optoélectroniques actifs (AOPD) pour la fonction de détection. Une attention particulière est portée sur les caractéristiques assurant qu'une performance relative à la sécurité appropriée est atteinte. Un ESPE peut comporter des fonctions de sécurité facultatives. Les exigences pour ces fonctions sont données à l'Annexe A de l'IEC 61496 1:2020 et du présent document. Le présent document ne spécifie ni les dimensions et configurations de la zone de détection, ni sa disposition par rapport aux parties dangereuses dans une application particulière, ni ce qui constitue un état dangereux pour toute machine donnée. Il se limite au fonctionnement de l'ESPE et à son interface avec la machine. Le présent document ne traite pas des AOPD qui utilisent des longueurs d'ondes hors de la plage de 400 nm à 1 500 nm. Le présent document peut être pertinent pour des applications autres que la protection des personnes, par exemple la protection des machines ou des produits contre des dommages mécaniques. Dans ces applications, des exigences complémentaires peuvent être nécessaires, par exemple lorsque les matériaux qui doivent être reconnus par le dispositif de détection ont des caractéristiques différentes de celles des personnes. Le présent document ne traite pas des exigences CEM (compatibilité électromagnétique) relatives aux émissions électromagnétiques. L'IEC 61496-2:2020 annule et remplace la troisième édition parue en 2013. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) Les exigences et procédures d’essai de la Partie 2 qui se sont révélées être communes à tous les ESPE ont été déplacées vers la Partie 1. Les procédures d’essai qui dépendent de la technologie de détection restent dans la Partie 2.
Varnost strojev - Električno občutljiva zaščitna oprema - 2. del: Posebne zahteve za opremo, ki uporablja aktivne optoelektronske zaščitne elemente (AOPD) (IEC 61496-2:2020)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2020
Nadomešča:
SIST EN 61496-2:2014
Varnost strojev - Električno občutljiva zaščitna oprema - 2. del: Posebne zahteve
za opremo, ki uporablja aktivne optoelektronske zaščitne elemente (AOPD) (IEC
61496-2:2020)
Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular
requirements for equipment using active opto-electronic protective devices (AOPDs)
(IEC 61496-2:2020)
Sicherheit von Maschinen - Berührungslos wirkende Schutzeinrichtungen - Teil 2:
Besondere Anforderungen an Einrichtungen, die aktive optoelektronische
Schutzeinrichtungen (AOPD) verwenden (IEC 61496-2:2020)
Securité des machines - Equipements de protection électro-sensibles - Partie 2:
Exigences particulières à un équipement utilisant des dispositif protecteurs
optoélectroniques actifs (AOPD) (IEC 61496-2:2020)
Ta slovenski standard je istoveten z: EN IEC 61496-2:2020
ICS:
13.110 Varnost strojev Safety of machinery
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61496-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2020
ICS 13.110; 29.260.99 Supersedes EN 61496-2:2013 and all of its amendments
and corrigenda (if any)
English Version
Safety of machinery - Electro-sensitive protective equipment -
Part 2: Particular requirements for equipment using active opto-
electronic protective devices (AOPDs)
(IEC 61496-2:2020)
Securité des machines - Equipements de protection électro- Sicherheit von Maschinen - Berührungslos wirkende
sensibles - Partie 2: Exigences particulières à un Schutzeinrichtungen - Teil 2: Besondere Anforderungen an
équipement utilisant des dispositif protecteurs Einrichtungen, die aktive optoelektronische
optoélectroniques actifs (AOPD) Schutzeinrichtungen (AOPD) verwenden
(IEC 61496-2:2020) (IEC 61496-2:2020)
This European Standard was approved by CENELEC on 2020-08-19. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61496-2:2020 E
European foreword
The text of document 44/875/FDIS, future edition 4 of IEC 61496-2, prepared by IEC/TC 44 "Safety of
machinery - Electrotechnical aspects" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN IEC 61496-2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-05-19
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-08-19
document have to be withdrawn
This document supersedes EN 61496-2:2013 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 61496-2:2020 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Annex ZA of Part 1 is applicable except as follows:
Add the following references:
Publication Year Title EN/HD Year
IEC 60825-1 - Safety of laser products - Part 1: EN 60825-1 -
Equipment classification and requirements
IEC 61496-1 2020 Safety of machinery - Electro-sensitive EN IEC 61496-1 2020
protective equipment - Part 1: General
requirements and tests
IEC 62471 - Photobiological safety of lamps and lamp EN 62471 -
systems
ISO 13855 - Safety of machinery - Positioning of EN ISO 13855 -
safeguards with respect to the approach
speeds of parts of the human body
ISO 20471 - High-visibility clothing - Test methods and EN ISO 20471 -
requirements
IEC 61496-2 ®
Edition 4.0 2020-07
INTERNATIONAL
STANDARD
colour
inside
Safety of machinery – Electro-sensitive protective equipment –
Part 2: Particular requirements for equipment using active opto-electronic
protective devices (AOPDs)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.110; 29.260.99 ISBN 978-2-8322-8452-0
– 2 – IEC 61496-2:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Functional, design and environmental requirements . 9
5 Testing . 14
6 Marking for identification and safe use . 40
7 Accompanying documents . 41
Annex A (normative) Optional functions of the ESPE . 42
Annex AA (informative) Type 2 AOPD periodic test configurations . 46
Figure 1 – Limit area for the protection against the risk of beam bypass . 12
Figure 2 – Limit of vertical and horizontal misalignment . 13
Figure 3 – Test piece at 45° . 18
Figure 4 – Test piece at 90° . 18
Figure 5 – Verifying sensing function by moving the test piece (TP) through the
detection zone near the emitter, near the receiver/retro-reflector target and at the
midpoint . 19
Figure 6 – Limit values for the effective aperture angle (EAA) . 21
Figure 7 – Determination of the minimum detection capability . 22
Figure 8 – Measuring method for EAA (direction) . 23
Figure 9 – Prism test to measure EAA of each beam . 25
Figure 10 – EAA test using prism . 26
Figure 11 – Example of optical subsystem . 27
Figure 12 – Example of SMD LED Model . 28
Figure 13 – Example of intensity distribution of emitting element . 28
Figure 14 – Example of emitter model with beams internally blocked by aperture stop . 29
Figure 15 – Example of receiving unit with off axis beam portion reflected internally on
mechanical elements . 29
Figure 16 – Example of test piece inside model of optical subsystem with passing
radiation on the receiver . 30
Figure 17 – Example of emitting unit adjusted at the limit . 31
Figure 18 – Extraneous reflection test with mirror outside of limit area . 32
Figure 19 – AOPD misalignment test . 34
Figure 20 – Light interference test – Direct method . 36
Figure 21 – Light interference test – Test set-up with incandescent light source . 37
Figure 22 – Light interference test – Test set-up with fluorescent light source . 38
Figure 23 – Light interference test – Test set-up with flashing beaconlight source . 39
Figure AA.1 – Single beam sensing device . 46
Figure AA.2 – Series connection of single beam sensing devices . 46
Figure AA.3 – Assembly of multiple beams tested individually. 46
Figure AA.4 – Example of type 2 AOPD with internal test . 47
IEC 61496-2:2020 © IEC 2020 – 3 –
Table 1 – Correspondences of requirements/testing and AOPD designs . 15
Table 2 – Maximum permissible angle of misalignment (in degrees) for a type 2 ESPE
depending on the dimensions of the light curtain . 32
Table 3 – Maximum permissible angle of misalignment (in degrees) for a type 3 ESPE
depending on the dimensions of the light curtain . 33
Table 4 – Maximum permissible angle of misalignment (in degrees) for a type 4 ESPE
depending on the dimensions of the light curtain . 33
– 4 – IEC 61496-2:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF MACHINERY –
ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT –
Part 2: Particular requirements for equipment using
active opto-electronic protective devices (AOPDs)
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible
...
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